Home / 8,420.83-12,620.99-5,956.36

Finding the Fourth Proportional to 8,420.83, 12,620.99 and 5,956.36

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Solution

The fourth proportional to 8,420.83, 12,620.99 and 5,956.36 is: 8,927.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,420.83 : 12,620.99 = 5,956.36 : x
  2. Step 2: Convert to fraction form
    8,420.83/12,620.99 = 5,956.36/x
  3. Step 3: Cross multiply
    8,420.83x = 12,620.99 × 5,956.36
  4. Step 4: Simplify right side
    8,420.83x = 75,175,143.33
  5. Step 5: Solve for x
    x = 75,175,143.33/8,420.83
  6. Step 6: Final answer
    x = 8,927.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.